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Ontario Secondary (Grade 9-12) Structure and Function of Plasma Membranes — practice questions — page 3

Explore 62 free Structure and Function of Plasma Membranes questions in Ontario Secondary (Grade 9-12) Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Structure and Function of Plasma Membranes questions and exercises with answers

Showing questions 61–62 of 62.

Catch what slips through by diffusionRead the answer and worked solution →Knock out the transport mythsRead the answer and worked solution →

Worked practice questions

Catch what slips through by diffusion

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Items
  1. Matches the category
    Yes
    Item
    Oxygen
  2. Matches the category
    Yes
    Item
    CO2
  3. Matches the category
    Yes
    Item
    Vitamin A
  4. Matches the category
    Yes
    Item
    Vitamin D
  5. Matches the category
    No
    Item
    Ions
  6. Matches the category
    No
    Item
    Polar molecules
Category
Crosses by diffusion
Instructions
Tap the arrows to move the basket. Catch what diffuses freely, let the rest fall.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 5 "Structure and Function of Plasma Membranes", section 5.2 Passive Transport_

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Knock out the transport myths

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Questions
  1. Question
    Three of these claims about membrane transport are false.
    Choices
    1. Item
      Diffusion expends no energy
      Correct
      Yes
    2. Explanation
      Oxygen and CO2 pass by simple diffusion, uncharged
      Item
      Oxygen needs a channel protein
    3. Explanation
      It uses transport proteins but no cellular energy
      Item
      Facilitated transport burns ATP
    4. Explanation
      Osmosis moves water across it constantly
      Item
      Water can never cross a membrane
Instructions
Tap each claim you can prove false. The true one stays put.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 5 "Structure and Function of Plasma Membranes", section 5.2 Passive Transport_

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